Liquid crystal display comprising first to fourth color filters wherein at least one color filter covers a contact point where four adjacent pixel areas meet

ABSTRACT

A liquid crystal display includes: a first substrate on which a plurality of pixel areas are formed; first to fourth color filter layers comprising a plurality of color filters disposed in the pixel areas and having four different colors in four adjacent pixel areas; a plurality of pixel electrodes disposed on the color filter layers corresponding to the respective pixel areas; a second substrate coupled to and facing the first substrate; and a common electrode disposed on one of the first substrate and the second substrate, wherein the first to fourth color filter layers are disposed in a 2×2 matrix, and wherein at least one color filter from among the color filters is wider in a row direction and a column direction of the first substrate than the remaining color filters so as to cover a contact point at which the four adjacent pixel areas meet.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and the benefit of Korean PatentApplication No. 10-2014-0046965 filed in the Korean IntellectualProperty Office on Apr. 18, 2014, the entire contents of which areincorporated herein by reference.

BACKGROUND

(a) Field

The present disclosure relates to a liquid crystal display, and moreparticularly, to a liquid crystal display using pixels of the fourprimary colors.

(b) Description of the Related Art

A liquid crystal display, which is one of the more common types of flatpanel displays currently in use, typically includes two sheets ofdisplay panels with field generating electrodes (such as a pixelelectrode and a common electrode) formed thereon, and a liquid crystallayer interposed therebetween. The liquid crystal display generates anelectric field in a liquid crystal layer by applying a voltage to thefield generating electrodes. The electric field determines the directionof liquid crystal molecules in the liquid crystal layer, thuscontrolling polarization of incident light so as to display images.

The liquid crystal display also includes a switching element connectedto each pixel electrode, and a plurality of signal lines (such as gatelines and data lines) for applying a voltage to a pixel electrode. Thevoltage is applied to the pixel electrode by controlling the switchingelement.

In general, in the liquid crystal display, three colors emitted fromthree respective pixels are mixed to produce one color, and a desiredimage is displayed by appropriately controlling the luminance of eachpixel. However, in some instances, when an image is displayed using onlythree color pixels, the light efficiency of the liquid crystal displaymay deteriorate.

Accordingly, there is a need for a liquid crystal display that candisplay an image at high resolution and that has improved lightefficiency.

The above information disclosed in this Background section is only forenhancement of understanding of the background of the inventive conceptand therefore it may contain information that does not form the priorart that is already known in this country to a person of ordinary skillin the art.

SUMMARY

The present disclosure addresses the above need for a liquid crystaldisplay that can display an image at high resolution and that hasimproved light efficiency.

According to an exemplary embodiment of the inventive concept, a liquidcrystal display is provided. The liquid crystal display includes: afirst substrate on which a plurality of pixel areas are formed; first tofourth color filter layers, wherein the first to fourth color filterlayers comprise a plurality of color filters disposed in the pluralityof pixel areas of the first substrate and having four different colorsin four adjacent pixel areas; a plurality of pixel electrodes disposedon the color filter layers so as to correspond to the respective pixelareas, and wherein the pixel electrodes are electrically insulated fromeach other; a second substrate coupled to and facing the firstsubstrate; and a common electrode disposed on one of the first substrateand the second substrate, wherein the first to fourth color filterslayers are disposed in a form of a 2×2 matrix, and wherein at least onecolor filter from among the color filters is wider in a row directionand a column direction of the first substrate than the remaining colorfilters so as to cover a contact point at which the four adjacent pixelareas meet.

In one embodiment, the plurality of pixel areas may be formed on thefirst substrate in a matrix form, and the color filters may berepeatedly arranged in the row direction and the column direction of thefirst substrate.

In one embodiment, the color filters may include a red color filter, agreen color filter, a blue color filter, and a white color filter.

In one embodiment, the white color filter may be wider than theremaining color filters.

In one embodiment, the white color filter may be formed in at least apart of an area where color filters of two colors from among theremaining color filters overlap.

In one embodiment, a portion of the white color filter may be formed ina non-display area on the first substrate.

In one embodiment, the liquid crystal display may further include alight blocking member formed on a region of the second substratecorresponding to the non-display area.

In one embodiment, the liquid crystal display may further include apassivation layer formed on an upper surface of a color filter that ispositioned at a topmost side of an area where the color filters of threecolors overlap.

In one embodiment, the passivation layer may be formed of a transparentconductive oxide.

In one embodiment, the transparent conductive oxide may be formed of asame material as the pixel electrode.

In one embodiment, the red color filter may be wider than the remainingcolor filters.

In one embodiment, the green color filter may be wider than theremaining color filters.

In one embodiment, the blue color filter may be wider than the remainingcolor filters.

In one embodiment, in the plurality of pixel areas formed in the rowdirection and the column direction of the first substrate, the colorfilter, which is alternately formed at an interval of one pixel area inthe row direction and the column direction, may have a larger size thanthe remaining color filters so as to cover the contact point at whichthe four adjacent pixel areas meet.

In one embodiment, the liquid crystal display may further include aliquid crystal layer interposed between the first substrate and thesecond substrate; a first alignment layer formed between the firstsubstrate and the liquid crystal layer; and a second alignment layerformed between the second substrate and the liquid crystal layer.

In one embodiment, the first alignment layer and the second alignmentlayer may include a reactive mesogen.

According to one or more of the above embodiments of the inventiveconcept, an area of a color filter formed in a pixel corresponding to aspecific color may be increased in a liquid crystal display using pixelsof the four primary colors, thereby preventing short-circuit defectsbetween adjacent pixels and light leakage in the area where the pixelsof the four primary colors meet.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating a liquid crystal displayaccording to an exemplary embodiment of the inventive concept.

FIG. 2 is an equivalent circuit diagram for a pixel of the liquidcrystal display according to an exemplary embodiment of the inventiveconcept.

FIG. 3 is a pixel layout view of the liquid crystal display according toan exemplary embodiment of the inventive concept.

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3.

FIG. 5 is a cross-sectional view taken along line V-V of FIG. 3.

FIG. 6 is a cross-sectional view illustrating a liquid crystal displayaccording to another exemplary embodiment of the inventive concept.

FIGS. 7 to 10 are pixel layout views of liquid crystal displaysaccording to various different exemplary embodiments of the inventiveconcept.

DETAILED DESCRIPTION

The inventive concept will be described more fully herein with referenceto the accompanying drawings, in which exemplary embodiments are shown.As those skilled in the art would realize, the described embodiments maybe modified in various different ways without departing from the spiritor scope of the inventive concept.

In the drawings, the thickness of layers, films, panels, regions, etc.,may be exaggerated for clarity. Like reference numerals designate likeelements throughout the specification. It will be understood that whenan element such as a layer, film, region, or substrate is referred to asbeing “on” another element, it can be directly on the other element orintervening elements may also be present. In contrast, when an elementis referred to as being “directly on” another element, there are nointervening elements present.

First, a liquid crystal display according to an exemplary embodiment ofthe inventive concept will be described in detail with reference toFIGS. 1 to 3.

FIG. 1 is a block diagram illustrating a liquid crystal displayaccording to an exemplary embodiment of the inventive concept. FIG. 2 isan equivalent circuit diagram for a pixel of the liquid crystal displayaccording to an exemplary embodiment of the inventive concept. FIG. 3 isa pixel layout view of the liquid crystal display according to anexemplary embodiment of the inventive concept.

As illustrated in FIG. 1, the liquid crystal display includes a liquidcrystal panel assembly 300, a gate driver 400 and a data driver 500connected to the liquid crystal panel assembly 300, a gray voltagegenerator 800 connected to the data driver 500, and a signal controller600 for controlling the liquid crystal panel assembly 300, the gatedriver 400, the data driver 500, and the gray voltage generator 800.

The liquid crystal panel assembly 300 includes a plurality of displaysignal lines (G₁ to G_(n), and D₁ to D_(m)), and a plurality of pixelsPX that are connected to the signal lines (G₁ to G_(n) and D₁ to D_(m))and arranged approximately in a matrix form. Referring to the structureillustrated in FIG. 2, the liquid crystal panel assembly 300 includeslower and upper panels 100 and 200 facing each other, and a liquidcrystal layer 3 interposed therebetween.

Specifically, the display signal lines include a plurality of gate linesG₁ to G_(n) for transferring a gate signal (referred to as a “scansignal”) and a plurality of data lines D₁ to D_(m) for transferring adata signal. The gate lines G₁ to G_(m) extend approximately in a rowdirection and are parallel with each other, and the data lines D₁ toD_(m) extend approximately in a column direction and are parallel witheach other.

Each pixel PX includes a switching element (not illustrated) connectedto the display signal lines (G₁ to G_(n) and D₁ to D_(m)), and a liquidcrystal capacitor Clc and a storage capacitor Cst connected to theswitching element. In some embodiments, the storage capacitor Cst may beomitted.

The switching element is a three terminal element (such as a thin filmtransistor) and may be disposed on the lower panel 100. The switchingelement includes a control terminal connected to the gate lines G₁ toG_(n), an input terminal connected to the data lines D₁ to D_(m), and anoutput terminal connected to the liquid crystal capacitor Clc and thestorage capacitor Cst.

The liquid crystal capacitor Clc includes two terminals and a dielectricmaterial. A pixel electrode 191 of the lower panel 100 and a commonelectrode 270 of the upper panel 200 serve as the two respectiveterminals, and the liquid crystal layer 3 between the two electrodes 191and 270 serves as the dielectric material. The pixel electrode 191 isconnected with a switching element Q, and the common electrode 270 isformed on a front surface of the upper panel 200 and receives a commonvoltage Vcom. In an alternative embodiment, the common electrode 270 isdisposed on the lower panel 100, and at least one of the two electrodes191 and 270 may be formed having a linear shape or a rod shape.

The storage capacitor Cst which ancillary parts as the liquid crystalcapacitor Clc is formed by overlapping a separate signal line (notillustrated) on the lower panel 100 and the pixel electrode 191 with aninsulating material (e.g. insulating layer 140) interposed therebetween.A predetermined voltage (such as the common voltage Vcom) is applied tothe separate signal line. However, in some other embodiments, thestorage capacitor Cst may be formed by overlapping the pixel electrode191 and a previous gate line (that is disposed above the pixel electrode191) with the insulating material (e.g. insulating layer 140) interposedtherebetween.

To implement a color display, each pixel PX can display one color fromamong the primary colors (spatial division) or alternately display theprimary colors according to time (time division), such that a desiredcolor can be produced by a spatial and/or temporal sum of the primarycolors. Examples of the primary colors may include the three primarycolors red, green, and blue. When white light is added to the combinedlight color, the entire luminance is increased. FIG. 2 illustrates anexample of spatial division. In FIG. 2, each pixel PX includes a colorfilter 230 for displaying one of the primary colors. The color filter230 is disposed in a region of the upper panel 200 corresponding to thepixel electrode 191. In an alternative embodiment, the color filter 230may be disposed above or under the pixel electrode 191 of the lowerpanel 100.

Referring to FIG. 3, pixels emitting red, green, blue, and white light(hereinafter, referred to as first to fourth pixel areas PA1, PA2, PA3,and PA4) are arranged in a matrix form. Each of the pixels includes acolor filter layer formed of a plurality of color filters PR, PG, PB,and PW disposed on respective pixel areas. That is, the color filters offour colors (PR, PG, PB, and PW having different colors) may be disposedon the four adjacent pixel areas PA1, PA2, PA3, and PA4, respectively.As an example of the inventive concept, the color filters of four colors(PR, PG, PB, and PW) may include red, green, blue, and white colorfilters.

Referring to the quadrangular box indicated by the dotted line in FIG.3, a first pixel row (in which the pixels PA1, PA2, PA3, and PA4including sequentially adjacent red color filter PR, green color filterPG, blue color filter PB, and white color filter PW are disposed) and asecond pixel row (in which the pixels PA3, PA4, PA1, and PA2 includingthe sequentially adjacent blue color filter PB, white color filter PW,red color filter PR, and green color filter PG are disposed) areadjacent to each other. Accordingly, the liquid crystal displayaccording to the exemplary embodiment of the inventive concept has astructure in which a basic unit formed of the first and second pixelrows is repeatedly disposed in a row direction and a column direction.

The color filters PR, PG, PB, and PW are formed as follows.Specifically, a red color filter PR is formed in the first pixel areaPA1 by patterning a first photo resist (not illustrated) in which redpigment is mixed. A green color filter PG is formed in the second pixelarea PA2 by patterning a second photo resist (not illustrated) in whichgreen pigment is mixed. A blue color filter PB is formed in the thirdpixel area PA3 by patterning a third photo resist (not illustrated) inwhich blue pigment is mixed. A white color filter PW is formed in thefourth pixel area PA4 by patterning a fourth white photo resist (notillustrated).

Next, the red, green, blue, and white color filters PR, PG, PB, and PWmay be disposed in the first to fourth pixel areas PA1, PA2, PA3, andPA4 in an island form, respectively.

In one embodiment, the white color filter PW (from among the red, green,blue, and white color filters PR, PG, PB, and PW) has a structure thatis wider in the row direction and the column direction than theremaining red, green, and blue color filters PR, PG, and PB, so as tocover areas in which the first to fourth pixel areas PA1, PA2, PA3, andPA4 are in contact with each other. A structure of the white colorfilter PW will be described later in detail with reference to FIGS. 5and 6.

First, the pixel area of the liquid crystal display according to anexemplary embodiment of the inventive concept will be described indetail with reference to FIG. 4.

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3.

Referring to FIG. 4, each pixel area (PA2 and PA4 of FIG. 3) may includeat least one thin film transistor TFT and the pixel electrode 191 inaddition to the color filter 230. In one embodiment, the pixel electrode191 of each pixel area may be formed on the color filter 230.

A contact hole 184 is formed in each of the color filters of four colorsPR, PG, PB, and PW. Accordingly, the pixel electrode 191 may beelectrically connected with the thin film transistor through the contacthole 184.

The liquid crystal layer 3 includes a plurality of liquid crystalmolecules having dielectric anisotropy. The liquid crystal molecules arevertically aligned liquid crystal molecules which are arranged betweenthe first substrate 101 and the second substrate 201 in a directionperpendicular to the upper surfaces of the two substrates 101 and 201.When an electric field is applied between the first substrate 101 andthe second substrate 201, the liquid crystal molecules rotate in aspecific direction between the first substrate 101 and the secondsubstrate 201 so as to allow light to pass through or block light.Specifically, the liquid crystal molecules may rotate such that theliquid crystal molecules lie in a direction parallel to the firstsubstrate 101 or the second substrate 201.

The second substrate 201 is coupled to (and faces) the first substrate101 with the liquid crystal layer 3 interposed therebetween. The displaypanel may further include the common electrode 270 disposed on thesecond substrate 201 and facing the pixel electrode 191. The commonelectrode 270 may be formed over the second substrate 201. In oneembodiment, the common electrode 270 may be formed on the firstsubstrate 101. When the common electrode 270 is disposed on the firstsubstrate 101, the common electrode 270 and the pixel electrode 191 maybe electrically insulated from each other.

The display panel may further include a light blocking member 220interposed between the second substrate 201 and the common electrode270. The light blocking member 220 may be disposed corresponding to anon-display area of each pixel area. The non-display area is an area inwhich the thin film transistors and the contact hole are formed in eachof the pixel areas PA1, PA2, PA3, and PA4. The non-display area may alsobe defined as an area where the directions of the liquid crystalmolecules of the liquid crystal layer 3 are not controlled.

As illustrated in FIG. 4, the display panel may further include a firstalignment layer 11 and a second alignment layer 21 for pre-tilting theliquid crystal molecules of the liquid crystal layer 3. The firstalignment layer 11 and the second alignment layer 21 may include areactive mesogen.

The first alignment layer 11 may be formed between the pixel electrode191 and the liquid crystal layer 3, and the second alignment layer 21may be formed between the common electrode 270 and the liquid crystallayer 3.

The reactive mesogen (which may be included in the first alignment layer11 and the second alignment layer 21) is a material having a propertysimilar to that of a general liquid crystal molecule, and has astructure in which photoreactive monomers are polymerized. The firstalignment layer 11 and the second alignment layer 21 including thereactive mesogen may be formed by forming the photoreactive monomers onthe pixel electrode 191 and the common electrode 270, and polymerizingthe monomers by applying light (such as ultraviolet rays). A polymerformed using the above method may extend in a predetermined direction topre-tilt the liquid crystal molecules. Accordingly, the liquid crystalmolecules of the liquid crystal layer 3 may be pre-tilted at apredetermined angle (for example, about 85° to 90°) by the firstalignment layer 11 and the second alignment layer 21. When an electricfield is applied to the liquid crystal layer 3, the liquid crystalmolecules of the liquid crystal layer 3 which are pre-tilted at thepredetermined angle may have a faster response speed than the liquidcrystal molecules which are not pre-tilted.

Next, a structure of the color filter disposed in the pixel areaaccording to an exemplary embodiment of the inventive concept will bedescribed in detail with reference to FIGS. 3 and 5.

FIG. 5 is a cross-sectional view taken along line V-V of FIG. 3.

Referring to FIGS. 3 and 5, the red, green, blue, and white colorfilters PR, PG, PB, and PW are disposed in each of the first to fourthadjacent pixel areas PA1, PA2, PA3, and PA4, respectively.

The white color filter PW (from among the red, green, blue, and whitecolor filters PR, PG, PB, and PW) has a structure that is wider in therow direction and the column direction than the remaining red, green,and blue color filters PR, PG, and PB so as to cover areas in which thefirst to fourth pixel areas PA1, PA2, PA3, and PA4 are in contact witheach other.

Particularly, the white color filter PW includes first to fourthoverlapping portions 241, 242, 243, and 244 so as to cover the areas inwhich the first to fourth pixel areas PA1, PA2, PA3, and PA4 are incontact with each other (when seen from a plan view).

Further, as shown from the plan view, the first to fourth overlappingportions 241, 242, 243, and 244 may partially overlap the red, green,and blue color filters PR, PG, and PB.

As illustrated in FIG. 5, the white color filter PW includes the fourthoverlapping portion 244 extending toward the first pixel area PA1 in thearea including a portion in which the first and fourth pixels areas PA1and PA4 are in contact with each other.

The fourth overlapping portion 244 may partially overlap the red colorfilter PR, and the red color filter PR may be disposed on the fourthoverlapping portion 244. A position of the red color filter PR may bechanged depending on the order of manufacturing of the red and whitecolor filters PR and PW. That is, if the red color filter PR is formedprior to the white color filter PW, the fourth overlapping portion 244may be formed on the red color filter PR.

Since the white color filter PW is primarily formed in the areas of thered color filter PR and the blue color filter PB (which alreadypartially overlap), the blue color filter PB may thus be partiallyformed on the fourth overlapping portion 244.

Further, the fourth overlapping portion 244 may be formed in thenon-display area of the first pixel area PA1 where the light blockingmember 220 is formed.

In an embodiment in which the liquid crystal display includes fourcolors, the color filters partially overlap in the portion where thecolor filters of two colors are in contact with each other, so as toprevent light leakage or short-circuit between the pixels. However, inthe portion where the pixels of the four primary colors are all incontact with each other, a portion is formed without a color filter, andas a result light leakage or short-circuit between the pixels throughthe portion may occur.

Accordingly, in the liquid crystal display according to the exemplaryembodiment of the inventive concept, the white color filter PW is widerthan the red, green, and blue color filers PR, PG, and PB in the rowdirection and the column direction, and the portion where the pixels ofthe four colors are in contact with each other is covered by the whitecolor filter PW, thereby preventing light leakage or short-circuitbetween the pixels.

In the portion where the color filters of three colors overlap, a cellgap may be decreased due to a step of the color filter. However, apredetermined height of the cell gap in the portion may be maintained byetching the color filter positioned at the topmost side among theoverlapping color filters of three colors and decreasing the step.

Further, outgassing of the color filter due to the etching of the colorfilter may be prevented by forming a passivation layer 192 on an uppersurface of the color filter. The passivation layer 192 is formed of atransparent conductive oxide. The passivation layer 192 is formed afteretching the color filter positioned at the topmost side among theoverlapping color filters of three colors, as illustrated in FIG. 6.Here, the transparent conductive oxide may be formed of the samematerial as the pixel electrode 191.

Next, the pixel layouts of liquid crystal displays according to variousdifferent exemplary embodiments of the inventive concept will bedescribed with reference to FIGS. 7 to 10.

FIGS. 7 to 10 are pixel layout views of liquid crystal displaysaccording to various exemplary embodiments of the inventive concept.

The embodiments in FIGS. 7 to 10 are substantially similar to thoseillustrated in FIG. 3, except the color filter in FIGS. 7 to 10 isformed having a wider area. A repeated description of the similarelements will be omitted.

First, as illustrated in the pixel layout view of FIG. 7, the red colorfilter PR, but not the white color filter PW, is wider in the rowdirection and the column direction. Accordingly, in the exemplaryembodiment illustrated in FIG. 7, light leakage or short-circuit betweenthe pixels in a portion (where the pixels of the four primary colors arein contact with each other) can be prevented by an overlapping portionof the red color filter PR.

FIG. 8 illustrates the pixel layout view according to another exemplaryembodiment of the inventive concept. In the embodiment illustrated inFIG. 8, the green color filter PG (but not the red color filter PR orthe white color filter PW) is wider in the row direction and the columndirection. Accordingly, in the exemplary embodiment illustrated in FIG.8, light leakage or short-circuit between the pixels in a portion (wherethe pixels of the four primary colors are in contact with each other)can be prevented by an overlapping portion of the green color filter PG.

FIG. 9 illustrates the pixel layout view according to another exemplaryembodiment of the inventive concept. In the embodiment illustrated inFIG. 9, the blue color filter PB (but not the red, green, and whitecolor filters PR, PG, and PW) is wider in the row direction and thecolumn direction. Accordingly, in the exemplary embodiment illustratedin FIG. 9, light leakage or short-circuit between the pixels in aportion (where the pixels of the four primary colors are in contact witheach other) can be prevented by an overlapping portion of the blue colorfilter PB.

FIG. 10 illustrates the pixel layout view according to another exemplaryembodiment of the inventive concept. In the embodiment illustrated inFIG. 10, all of the color filters, which are alternately and repeatedlydisposed in the row direction and the column direction at an interval ofone pixel, are wider in the row direction and the column direction. Whenall of the color filters, which are adjacent to each other in the rowdirection and the column direction, have wider structures, there may bea section in which the color filters of all four colors overlap. In thiscase, it may be difficult to have the cell gap at a predetermined heightbecause a step due to the color filters of all four colors is increasedat the overlapping portion between the color filters, such that thecolor filters are alternately and repeatedly formed wider at an intervalof one pixel in the row direction and the column direction.

According to the exemplary embodiments of the inventive concept, an areaof a color filter formed in a pixel corresponding to a pixel of aspecific color may be increased in the liquid crystal display using thepixels of the four primary colors, thereby preventing short-circuitdefects between adjacent pixels and light leakage in the area where thepixels of the four primary colors meet.

While this inventive concept has been described in connection with whatis presently considered to be practical exemplary embodiments, it is tobe understood that the inventive concept is not limited to the disclosedembodiments, but, on the contrary, is intended to cover variousmodifications and equivalent arrangements included within the spirit andscope of the appended claims.

What is claimed is:
 1. A liquid crystal display, comprising: a firstsubstrate on which a plurality of pixel areas are formed; first tofourth color filter layers, wherein the first to fourth color filterlayers comprise a plurality of color filters disposed in the pluralityof pixel areas of the first substrate and having four different colorsin four adjacent pixel areas; a plurality of pixel electrodes disposedon the color filter layers so as to correspond to the respective pixelareas, and wherein the pixel electrodes are electrically insulated fromeach other; a second substrate coupled to and facing the firstsubstrate; and a common electrode disposed on one of the first substrateand the second substrate, wherein the first to fourth color filterlayers are disposed in a form of a 2×2 matrix, wherein the first tofourth color filter layers have a rectangular shape in a plane parallelto a plane of the first substrate, and wherein at least one color filterfrom among the color filters is wider in a row direction and a columndirection of the first substrate than the remaining color filters so asto cover a contact point at which the four adjacent pixel areas meet. 2.The liquid crystal display of claim 1, wherein: the plurality of pixelareas are formed on the first substrate in a matrix form, and the colorfilters are repeatedly arranged in the row direction and the columndirection of the first substrate.
 3. The liquid crystal display of claim2, wherein: the color filters include a red color filter, a green colorfilter, a blue color filter, and a white color filter.
 4. The liquidcrystal display of claim 3, wherein: the white color filter is widerthan the remaining color filters.
 5. The liquid crystal display of claim4, wherein: the white color filter is formed in at least a part of anarea where color filters of two colors from among the remaining colorfilters overlap.
 6. The liquid crystal display of claim 5, wherein: aportion of the white color filter is formed in a non-display area on thefirst substrate.
 7. The liquid crystal display of claim 6, furthercomprising: a light blocking member formed on a region of the secondsubstrate corresponding to the non-display area.
 8. The liquid crystaldisplay of claim 5, further comprising: a passivation layer formed on anupper surface of a color filter that is positioned at a topmost side ofan area where the color filters of three colors overlap.
 9. The liquidcrystal display of claim 8, wherein: the passivation layer is formed ofa transparent conductive oxide.
 10. The liquid crystal display of claim9, wherein: the transparent conductive oxide is formed of a samematerial as the pixel electrode.
 11. The liquid crystal display of claim3, wherein: the red color filter is wider than the remaining colorfilters.
 12. The liquid crystal display of claim 11, wherein: the redcolor filter is formed in at least a part of an area where color filtersof two colors from among the remaining color filters overlap, and aportion of the red color filter is formed in a non-display area on thefirst substrate.
 13. The liquid crystal display of claim 3, wherein: thegreen color filter is wider than the remaining color filters.
 14. Theliquid crystal display of claim 13, wherein: the green color filter isformed in at least a part of an area where color filters of two colorsfrom among the remaining color filters overlap, and a portion of thegreen color filter is formed in a non-display area on the firstsubstrate.
 15. The liquid crystal display of claim 3, wherein: the bluecolor filter is wider than the remaining color filters.
 16. The liquidcrystal display of claim 15, wherein: the blue color filter is formed inat least a part of an area where color filters of two colors from amongthe remaining color filters overlap, and a portion of the blue colorfilter is formed in a non-display area on the first substrate.
 17. Theliquid crystal display of claim 3, wherein: in the plurality of pixelareas formed in the row direction and the column direction of the firstsubstrate: the color filter, which is alternately formed at an intervalof one pixel area in the row direction and the column direction, has alarger size than the remaining color filters so as to cover the contactpoint at which the four adjacent pixel areas meet.
 18. The liquidcrystal display of claim 1, further comprising: a liquid crystal layerinterposed between the first substrate and the second substrate; a firstalignment layer formed between the first substrate and the liquidcrystal layer; and a second alignment layer formed between the secondsubstrate and the liquid crystal layer.
 19. The liquid crystal displayof claim 18, wherein: the first alignment layer and the second alignmentlayer include a reactive mesogen.